Padlock



P. MALACZYNSKI.

PADLOCK.

APPLICATION FILED SEPT. 23. 1919.

Patented Apr. 6,1920.

2 SHEETSSHEET 2.

aim By W0 A TTORNEYS UNITED STATES PATENT OFFICE.

PETER MALACZYNSKI, OF BROOKLYN, NEW YORK.

IPADLOCK.

Patented Apr. 6, 1920.

Application filed September 23, 1919. Serial No. 325,734.

To all whom it may concern:

Be it known that I, PETER MALACZYNSKI, a citizen of Poland, and aresident of the city of New York, borough of Brooklyn, in the county ofKings and State of New York, have invented a new and useful Padlock, ofwhich the following is a full, clear, and exact description.

This invention relates to looks and particularly to an improvedcombination padlock and has for an object to provide a constructionwhich is extremely simple, but which requires a very'accurate adjustmentof the parts to produce an unlocking operation.

Another object of the invention is to provide a combination padlockwherein means are provided which require two separate adjustments tocompletely lock or unlock the device.

In the accompanying drawings:

Figure 1 is a side view of a padlock embodying the invention, certainfeatures being removed for illustrating certain of the detailconstruction.

Fig. 2 is an edge view of the structure shown in Fig. 1.

Fig. 3 is a sectional view approximately on line 33 of Fig. 2.

Fig. 4 is a sectional View through Fig. 3 on line 44.

Fig. 5 is a top plan view of the complete lock.

Fig. 6 is a sectional view through Fig. 3 on line 6-6.

Fig. 7 is a fragmentary sectional view similar to Fig. 3, but showingthe parts in a different position. 7

Fig. 8 is an elevation and section through one of the locking rings orkeepers embodying certain features of the invention.

Fig. 9 is an elevation and section through a second locking ringembodying certain features of the invention.

Fig. 10 discloses an elevation and two end views of a locking camembodying certain features of the invention.

Referring to the accompanying drawings by numerals 1 indicates what maybe termed a casing connected with a cross bar 2 by tubular member 3which is provided with shoulders at each end as shown in Fig. 3 and isheld in place by the respective pins 4 and 5 secured to the member 3 byrivets or otherwise as may be desired. Pin 4 has a disk 6 rigidlysecured thereto provided with letters, numbers or other indications withsuitable graduations co-actin with one or more marks 7 on bar 2. Fin 5extends through a cam disk 8 and is rigidly secured thereto, the extremeend, however, being journaled in the casing 1 as shown at the bottom ofFig. 3. This cam as shown in Fig. 10 is round and is provided withraised portions 9 and 10 on each face and depressions 11 and 12 on eachface whereby the arms 13 and 14 and also the arms 15 and 16 whichoverlap the disk may be separated or allowed to approach according tothe position of the cam. .These arms are pivotally connected together inpairs at 17 and 18 and merge into pairs of locking bars 19 and lockingbars 20. Each of the locking bars is provided with a number of notches21 having a lug or projection 22 adjacent each notch so as to overlapthe respective flanges 23 of the looking rings or keepers 24 and 25.These rings, as shown in Figs. 8 and 9, are provided with inwardlyextending flanges 23, each flange having a pair of oppositely positionednotches 26 and an extra deep notch 27. The ring 24 has a flange adjacentone face while the flange 23 of ring 25 is set in a short distance so asto accommodate the first lug 28 of the shackle 29. A spring 30 ispositioned between each pair of bars 19 so as to give the same acontinuous tendency to open or spread to the position shown in Fig. 7whereby they will interlock with the flanges 23 and move away from thevarious lugs 28 on the shackle extension 29. The lugs 28 are somethingof the nature of buttress threads, so as to provide shoulders designedto interlock not only with the flanges 23 but with the hook-shapedmembers 31 on the respective locking bars 19. When the locking bars arein their locked position they appear as shown in Fig. 3, and

when 111 their unlocked position as shown in Fig. 7. When the variouslocking rings or keepers 24 or 25 are in their unlocked position theyassume the position shown in Fig. 6 with all of the notches 27 in lineas well as notches 26. If the notches 26 were not provided the bars 19could not be moved to their open position as shown in Fig. 7. By reasonof this construction and arrangement the various locking rings 24: and25 must be alined on both legs of the shackle 29 and then the disk 6turned until the cam disk 8 is in the position shown in Fig. 7 whereuponthe springs 30 will cause the bars 19 to move over into the notches 26.This will free the shackle extension 29 from engagement with any of thelocking members and consequently-the shackle may be removed by a directpull thereon. To strengthen and stiflen the parts and also to cause aproper operation of the various parts the casing 1 is provided with apair of tubular upstanding members 32 as indicated in Figs. 3, 1 and 6,said tubular upstanding members being provided with slots 33, 34: and 35for accommodating the locking bars 19 and the shackle extension 29' withtheir lugs 28.

It will be noted that the indications on the disk 6 in respect to theline 7 on bar 2 cannot be changed to vary the combination unless thelock is taken to pieces and the cam disk 8 shifted. However, thecombination of the locking rings or keepers 2 1 may be varied easily. Asshown in Fig. 1 it will be seen that the locking ring 25 is providedwith a number of letters arranged between vertical lines 36, each letterhaving an indication line 37 therebetween. This same arrangement isprovided 011 the locking rings 24, but with a different arrangement ofletters. When the various lines 37 of the proper letters are broughtinto alinement and also into alinement with the indicating line 38 oncasing 1 the notches 27 are all in line so that the disk 6 may be turnedand the shackle 29 removed. If it is desired to change the combinationof these locking rings it will be necessary to remove the shackle 29,disk 6 and bar 2 and then rearrange the rings 24 as desired after whichthe bar 2 and disk 6 must be replaced. It will be noted that both legsof the shackle 29 are formed with locking means, the same beingidentical, but the rings 24 and 25 are duplicated on both sides, butpreferably a different set of letters are used on the respective sidesso that there will really be three combinations, one for each side andone for the disk 6.

What I claim is:

1. A combination padlock comprising a casing, a shackle having a pair oflocking extensions projecting into part of the easing, a plurality oflocking rings for locking said extensions, each of said rings beingrotatable so as to be moved into and out of adjustment for locking andunlocking the extension, a pair of auxiliary locking bars for each ofsaid extensions, and manually operated means for shifting said bars whenthe locking rings are alined in an unlocked position.

2. A combination lock in the form of a padlock comprising a casing, aU-shaped shackle having a pair of locking extensions provided withshouldered members, a plu rality of rings surrounding each of saidextensions formed with notches for accommodating the extensions so thatthe shackle may be applied and removed when the rings are positionedwith the notches in alinement, each of said rings being formed with aflange for overlapping said notches when the notches are out ofalinement, and locking bars operated independently of the rings adaptedto engage said locking extensions.

3. A combination lock of the padlock type comprising a casing having apair of tubular upstanding members, each upstanding member being formedwith three slots, a U- shaped shackle having locking extensions fittingloosely in said upstanding members, said locking extensions havingshouldered projections extending through one of said slots in each ofthe upstanding members, a plurality of locking rings or keepers surrounding each of said upstanding members, each of said rings beingformedwith an internal flange having a notch for accommodating the projectionsfrom said locking extensions when the notches "are in alinement, saidinternal flanges overlapping said proj ections when the notch in any ofthe locking rings is out of alinement, a locking bar arranged in each oftwo of said slots, and means for causing said bars to interlock withsaid locking extensions.

4. A combination lock in the nature of a padlock comprising a casinghaving a pair of spaced tubular members, each of said tubular membersbeing formed with a pair of opposite slots and a third slot arrangedbetween the two first mentioned slots, a shackle having lockingextensions fitting into said tubular members, each of said lockingextensions being provided with, a pair of shouldered portions extendingtoward the first mentioned slots and a third shouldered portionextending toward the second mentioned slot, locking rings positioned tointerlock with the last mentioned shouldered portion, a pair of lockingbars having projections adapted to interlock with the first mentionedprojections on the locking extensions on the shackle, a cam for movingsaid locking bars into and out of engagement, and an operating membervconnected with said cam positioned exteriorly of the casing.

5. A combination lock in the form of a padlock provided with a casing, apair of spaced tubular members, each member being providedwithoppositely arranged slots, a

U-shaped shackle having locking projections extending into the tubularmembers, a pair spring for moving said locking bars to an of pivotallymounted locking bars for each unlocked position, a rotatable cam formovof said tubular members operating in the ing said locking bars to alocked position, 10 slots therein, each of said tubular members and anoperating member extending to the being formed with a locking projectionexterior of the casing for operating said adapted to interlock With theprojections on cam.

the locking extensions on the shackle, a PETER MALACZYNSKI.

